(K),(M)430TB/G Up to 36 kv

Transcription

1 IS90722-ENG - 430TB/G June Revision 8A - Supersedes edition of 25 November 2008 Page 1 of 10 CAUTION : Read instructions thoroughly and completely prior to beginning installation. Installation instructions for separable tee connector - type C interface (K),(M)430TB/G Up to 36 kv Required components for the connector installation : 3 x Tee connector housing - 430BT 3 x Basic insulating plug+ cap - 300BIPR (up to 24 kv) + Silicone grease + wipers Only to be used on copper wire screened cable with extruded easy strip or bonded semi-conductive screen. or 3 x Cable reducer 430CA-W 3 x Basic insulating plug+ cap - 300BIPA (up to 36 kv) Installation instructions 3 x Clamping screw - 430TCS Water sealing mastic, type MWS (optional) or 3 x Conductor - TBC-X or TMBC-X Field control mastic, type MFC 1 x Installation rod (optional use for sizes 185 up to 300 mm²) Roll adhesive tape a Nexans company This product should be installed only by competent personnel trained in good safety practices involving high voltage electrical equipment. These instructions are not intended as a substitute for adequate training or experience in such safety practices. These instructions do not attempt to provide for every possible contingency. Failure to follow these instructions could result in damage to the product and serious or fatal injury. IMPORTANT : Cable and associated apparatus must be de-energised, locked out, and tagged prior to product installation.

2 Page 2 of 10 EQUIPMENT equipment bushing (type C interface ) cut back point of outer sheath outer cable sheath M 250 necessary length of screen wire earth connection 1 Train the cable into the approximate finished position next to the equipment bushing. Be sure to allow enough extra length of concentric wires to connect to earth. 2 Mark centre line «M» of the bushing. 3 Remove the outer cable sheath to a point 250 mm from the centre line «M» of the bushing. For outdoor applications : one layer of water sealing mastic (type MWS) CUT HERE edge of the outer sheath tape marker outer cable sheath adhesive tape copper wires min Apply a tape marker around the outer sheath 40 mm from the edge. For indoor applications, bend the screen wires back over the outer sheath and proceed to step no. 5. For outdoor applications: - Wrap one layer of water sealing mastic (type MWS) around the outer sheath, flush with the end (25 mm minimum width). Completely encircle the cable. - Bend the screen wires back over the mastic and along the outer sheath, pressing them into the mastic. - Important: screen wires should not touch each other when pressed into the mastic to prevent water ingress. 5 Using adhesive tape, fix the screen wires at a distance of min 150 mm from the edge of the outer sheath. 6 Cut the cable to a point 205 mm from the outer sheath.

3 Page 3 of 10 CABLE PREPARATION For extruded easy strip semi-conductive screen easy strip semi-conductive screen 1 Check distance of 205 mm. 2 Remove the easy strip semi-conductive screen to a point 30 mm from the outer sheath. Cut squarely taking care not to cut the. outer sheath 30 For bonded extruded semi-conductive screen bonded semi-conductive screen Check distance of 205 mm. 2 Remove the bonded semi-conductive screen to a point 30 mm from the outer sheath. Use an appropriate pencilling tool. 3 Remove any traces of conductive residue from the.

4 Page 4 of 10 REMOVAL OF THE CORE INSULATION A. Compression type s (Type TBC-X) B. Mechanical type s (Type TMBC-X) A. Remove the from the for a distance «C» mm (C = depth of bore + 15 mm). field control mastic strip, type MFC 1 B. Remove the from the for a distance «C» mm (C = depth of bore + 5 mm). protective adhesive tape 2 Slightly bevel the edge of the. 3 Thoroughly clean. Always wipe towards the screen wires. 4 As a protection, wrap a few turns of adhesive tape around the end. 5 Remove field control mastic strip, type MFC, from coated paper. 6 Slightly stretch one end of the strip, making sure not to break it. 7 Apply the mastic on the cutback edge of the semi-conductive screen, covering approximately 5 mm of the extruded semi-conductive screen and 5 mm of the. 8 Push the mastic in place while stretching it progressively until both ends overlap and tear-off the excess mastic. 9 Using the coated side of the paper, squeeze the mastic tightly in place on the step of the semi-conductive screen. INSTALLATION OF THE CABLE REDUCER C 10 For sizes 35 up to 150 mm² bevel C protective adhesive tape 1 Lubricate* the indicated area :, mastic, semi-conductive screen and inner surface of the reducer. 2 Slide the reducer down the cable. 3 Remove protective adhesive tape from the.

5 Page 5 of 10 For sizes 185 mm² up to 300 mm² installation rod 1 Slide the installation rod on to the until it butts against the. installation rod protective adhesive tape 2 Thoroughly clean installation rod and. Always wipe towards the screen wires. 3 Lubricate* the indicated area : installation rod,, mastic, semi-conductive screen and inner surface of the reducer. 4 Slide the reducer on to the installation rod. 5 Slide the reducer down the cable. Take care to slide the reducer without hesitation and in one smooth move. 6 Remove installation rod and protective adhesive tape from the. * USE ONLY THE SILICONE LUBRICANT SUPPLIED

6 Page 6 of 10 CRIMPING/TIGHTENING OF THE CONTACT A Compression type s (Type TBC-X) Please refer to the crimp chart supplied with the. equipment bushing 1 For aluminium s : before installing the, wire brush the. 2 Fit the on to the. 3 Position the crimp taking care that the hole aligns with the bushing hole. 4 Prior to crimping distance «Z» must be between 150 and 160 mm. 5 Crimp the. Please refer to the crimp chart for crimp sequence. 6 After crimping distance «Z» must be between 155 and 165 mm. If necessary, adjust the position of the until distance «Z» is within the tolerance range. 7 Remove any burrs left after crimping and wipe-off excess inhibitor. Z deep indent crimping palm DIN crimping

7 B Mechanical type s (Type TMBC-X) Page 7 of 10 Before tightening Z = & é holding tool palm 1 For aluminium s : before installing the, wire brush the. equipment bushing 2 Insert, if necessary, the centre ring into the barrel according to table 1. 3 Position the so that the hole aligns with the bushing hole. 4 Before tightening, distance «Z» must be between 155 and 165 mm. 5 Tighten the screws slowly and alternately, with the tool according to table 2, until the heads shear off. It is recommended to use the holding tool for ease of installation. Tighten first screw & then é. 6 When the screws do not shear off flush with the barrel surface, apply one layer of vinyl tape around the barrel in order to protect the inside surface of the connector body during installation. TMBC LV TMBC LV TMBC LV TMBC grey grey red mm² mm² Small bore Table 1 yellow Large bore 50 mm² mm² mm² Small bore Small bore mm² mm² blue Table 1 yellow Large bore Table 1 Table 1 No centre ring necessary 95 mm² mm² mm² brown Large bore No centre ring necessary No centre ring necessary Al : mm² Cu : mm² 17mm Al : mm² Cu : mm² 17mm Al : mm² Cu : mm² 19mm Al : mm² Cu : mm² 22mm Table 2 Al : mm² Cu : mm² SW 6 Table 2 SW 6 Table 2 SW 6 Table 2 6mm L > 15 mm Al : 240 mm² Cu : mm² SW 6 Al : 150 mm² Cu : 120 mm² 6mm 6mm L > 19 mm Al : 300 mm² Cu : 300 mm² 6mm L > 15 mm L > 19 mm After tightening Z = After tightening, distance «Z» must be between 155 and 165 mm. If necessary, adjust the position of the until distance «Z» is within the tolerance range. 8 Wipe-off excess inhibitor and remove any burrs resulting from tightening.

8 Page 8 of 10 CONNECTOR INSTALLATION ON CABLE clean connector housing CONNECTOR INSTALLATION ON BUSHING equipment bushing locking ridge connector housing 1 Clean, and. 2 Lightly * the inside surface of the connector housing and outer surface of the. 3 Check if the angle of the tee connector housing is correct relative to the palm of the crimp and the longer interface is pointed towards the bushing. Whilst preventing the from further movement down the cable, gently slide the housing on the cable until it cannot advance any further. 4 For mechanical type s : make sure the spade locks into the connector's housing. Check correct installation by trying to pull back the connector. It is correctly installed when it stays in its locked position. 5 The must stay in place during installation. * USE ONLY THE SILICONE LUBRICANT SUPPLIED 1 Clean and lightly * both connector and bushing interface. 2 Push connector on to the bushing.

9 Page 9 of 10 22mm clamping screw 22 mm socket L 90 mm extension 1/2" - 12,7 mm torque wrench 1/2" - 12,7 mm torque wrench 3 Insert clamping screw into the threaded hole of the bushing. 4 Use torque wrench with a socket wrench 22 and tighten exerting 50 Nm (5 kgm or 36,9 foot-pounds) of torque. In order to achieve the correct applied torque ensure that there is no lubricant on the threaded parts. basic insulating plug 22mm 22 mm socket 5 Clean and * the insulating plug for the opposite side of the connector. 6 Insert the plug in the connector and tighten assembly : use torque wrench with socket of 22 and tighten exerting 30 Nm (3 kgm or 22,1 foot-pounds) of torque. In order to achieve the correct applied torque ensure that there is no lubricant on the threaded parts. * USE ONLY THE SILICONE LUBRICANT SUPPLIED

10 Page 10 of 10 INSTALLATION OF THE CAP CONNECTOR EARTHING AND CABLE CLAMPING protective cap A. Installation on insulating plug BIPR without voltage detection point (for applications up to 24 kv only) : Clean inside of the cap and outside surface of connector and insulating plug. Push cap over the connector and on to the insulating plug. Slightly pull up the edge of the cap to exhaust the air during assembly. Position the cap with the pulling tab pointing downwards. protective cap B. Installation on insulating plug BIPA with voltage detection point (for applications up to 36 kv) : Clean inside of the cap and outside surface of connector and insulating plug. Push cap over the connector and on to the insulating plug. Slightly pull up the edge of the cap to exhaust the air during assembly and while pressing the centre of the cap on to the locking point until it snaps in place. Position the cap with the pulling tab pointing downwards. system earth screen wires cable clamp 1 Bend back the screen wires along the outer sheath to form a pig tail. 2 Connect the earthing lead and screen wires to the system earth. NOTE : A connector/bushing mated combination should not be allowed to carry the full weight of the cable. Therefore clamp the cable as close as possible to the connector. IMPORTANT NOTES : - Never disconnect the connector from energised equipment nor energise a disconnected connector without previously installing on its appropriate corresponding mating part. - Do not allow hydrocarbon oils or solvents to contaminate the E.P.D.M. rubber. In the event of contamination, wipe the surface clean with a dry cloth. a Nexans company locking point earthing lead Nexans Network Solutions NV - div. EUROMOLD Zuid III - Industrielaan 12 B-9320 EREMBODEGEM-AALST BELGIUM Tel: +32 (0)53/ Telefax: +32 (0)53/ sales.euromold@nexans.com